Evaluation of Pharyngeal Space in Different Combinations of Class II Skeletal Malocclusion

Soni, Jay; Shyagali, Tarulatha R; Bhayya, Deepak P; Shah, Romil

doi:10.5455/aim.2015.23.285-289

Cited by 12 publications

(9 citation statements)

References 25 publications

(32 reference statements)

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“…Individuals with impaired nasopharyngeal airways may tend to exhibit mouth breathing due to the enlargement of the adenoid tissue 23. Associated factors may also induce mouth breathing, among which are constriction of the nasal passage, a narrowed or obstructed nasopharynx, hypertrophic nasal membranes, enlarged turbinates, hypertrophic palatine or pharyngeal tonsils, nasal septal deviation, choanal atresia, and pathology in the nose or nasopharynx 4.…”

Section: Introductionmentioning

confidence: 99%

Pharyngeal airway dimensions in skeletal class II: A cephalometric growth study

Uslu-Akcam

2017

Imaging Sci Dent

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PurposeThis retrospective study aimed to evaluate the nasopharyngeal and oropharyngeal dimensions of individuals with skeletal class II, division 1 and division 2 patterns during the pre-peak, peak, and post-peak growth periods for comparison with a skeletal class I control group.Materials and MethodsTotally 124 lateral cephalograms (47 for skeletal class I; 45 for skeletal class II, division 1; and 32 for skeletal class II, division 2) in pre-peak, peak, and post-peak growth periods were selected from the department archives. Thirteen landmarks, 4 angular and 4 linear measurements, and 4 proportional calculations were obtained. The ANOVA and Duncan test were applied to compare the differences among the study groups during the growth periods.ResultsStatistically significant differences were found between the skeletal class II, division 2 group and other groups for the gonion-gnathion/sella-nasion angle. The sella-nasion-B-point angle was different among the groups, while the A-point-nasion-B-point angle was significantly different for all 3 groups. The nasopharyngeal airway space showed a statistically significant difference among the groups throughout the growth periods. The interaction among the growth periods and study groups was statistically significant regarding the upper oropharyngeal airway space measurement. The lower oropharyngeal airway space measurement showed a statistically significant difference among the groups, with the smallest dimension observed in the skeletal class II, division 2 group.ConclusionThe naso-oropharyngeal airway dimensions showed a statistically significant difference among the class II, division 1; class II, division 2; and class I groups during different growth periods.

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Section: Introductionmentioning

confidence: 99%

Pharyngeal airway dimensions in skeletal class II: A cephalometric growth study

Uslu-Akcam

2017

Imaging Sci Dent

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“…Soni et al compared the mandibular retrognathia to the maxillary prognathia group and reported a difference in oropharynx measurements as a result of the study (22). However, the disadvantage of the findings of this study is that both hypopharyngeal measurements were not made and combined Class II malocclusions were not evaluated.…”

Section: Discussionmentioning

confidence: 80%

“…Class II malocclusions are characterized by the prognathic maxilla, retrognathic mandible, or a combination of these two conditions. It is well known that treatment of Class II malocclusion leads to improved respiratory disturbance due to airway obstruction (22,23). According to Balter, the etiology of Class II malocclusion is the positioning of the tongue backwards and causes discomfort in the cervical region (24).…”

Section: Discussionmentioning

confidence: 99%

Cephalometric Evaluation of Nasopharyngeal Airway and Hyoid Bone Position in Subgroups of Class II Malocclusions

Büyükçavuş

Kocakara

2020

Odovtos - Int J Dent Sc

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The aim of the study is to evaluate pharyngeal airway dimensions and hyoid bone position according to different Class II malocclusion types in Turkish population. Materials and Methods: The retrospective clinical study consisted of patients divided into 3 subgroups with skeletal Class II malocclusion. A total of 221 individuals (131 females and 90 males) were included in the study. Individuals with skeletal Class II malocclusion were divided into three subgroups as maxillary prognathia, mandibular retrognathia and combined. In the cephalometric analysis; 8 nasopharyngeal, 7 oropharyngeal, 2 hypopharyngeal, 9 hyoid measurements and 4 area measurements were used. The distribution of sex and growth-development stages of the patients were compared with the Pearson chi-square test. One-way ANOVA was used to evaluate patients. Tukey Post-Hoc tests were used for bilateral comparisons for significant parameters. SPSS package program was used for data analysis. Results were considered statistically significant at p<0.05 significance level. Results: According to findings, there was no significant difference between the groups in nasopharyngeal airway and area measurements (p>0.05). When the position of the hyoid bone was evaluated, a statistically significant difference was found between the three groups in the measurements of Hy-Pg (mm) (p<0.05). Conclusion: Linear and areal nasopharyngeal airway dimensions are similar in subgroups of Class II malocclusions, while the distance of the hyoid bone from the pogonion is less in the mandibular retrognathia group.

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“…5 For the normal development and enlargement of craniofacial region, it necessitates the need of a potent airway. 6 Genetics is responsible for the dimensions and proportions of face and hence of the air passages; though, environmental conditions seem to be a foremost cause of nasal obstruction. 7 According to McNamara and Brudon, the upper pharyngeal wall is determined from the posterior surface of the soft palate to the nearest area on the wall of dorsal pharynx, the lower pharyngeal area is determined from the junction of tongue's posterior boundary and the mandible's lower margin to the nearest area on the wall of posterior pharynx.…”

Section: Introductionmentioning

confidence: 99%

Correlation Between Pharyngeal Airway Space and Sagittal Skeletal Malocclusions

Siddiqui¹,

Medical²,

Rizwan³

et al. 2020

J Pak Dent Assoc

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OBJECTIVE: To determine correlation between pharyngeal airway space and sagittal skeletal malocclusions. METHODOLOGY: Data was collected using pre-treatment records including pre-treatment lateral cephalograms of 54 orthodontic patients. Patients from both gender were included. The age group of selected patients was 15-25 years, Patients belonging to Pakistani ethnicity were included to avoid selection bias. Sagittal skeletal malocclusion was measured by ANB angle to group the skeletal Class I, II and III subjects (ANB=0-4°, ANB > 4° and ANB <0 respectively). Upper pharyngeal space and Lower Pharyngeal space was measured. This cross sectional study was conducted in Orthodontic OPD at Karachi Medical and Dental College, from August 2019 to March 2020. RESULTS: The obtained data showed strong negative correlation between ANB angle and upper pharyngeal space whereas moderately negative correlation between ANB angle and lower pharyngeal space. CONCLUSION: Upper and lower pharyngeal widths were influenced by Sagittal malocclusion. KEYWORDS: Pharyngeal airway space, Sagittal skeletal malocclusion, Obstructive sleep apnea, Sleep disordered breathing, ANB. HOW TO CITE: Siddiqui H, Rizwan S, Faisal SS, Hussain SS. Correlation between pharyngeal airway space and sagittal skeletal malocclusions. J Pak Dent Assoc 2020;29(4):217-222.

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Evaluation of Pharyngeal Space in Different Combinations of Class II Skeletal Malocclusion

Cited by 12 publications

References 25 publications

Pharyngeal airway dimensions in skeletal class II: A cephalometric growth study

Pharyngeal airway dimensions in skeletal class II: A cephalometric growth study

Cephalometric Evaluation of Nasopharyngeal Airway and Hyoid Bone Position in Subgroups of Class II Malocclusions

Correlation Between Pharyngeal Airway Space and Sagittal Skeletal Malocclusions

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